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**the_white_sheep****Member**- Registered: 2005-09-05
- Posts: 9

Hi

I know this may look easy for some people but I'm just grasping it. Please look at the following simultaneous equation and see what you get. Thanks alot.

3p + 2q = 9

4p - 6q = 25

Please let me know how you worked it out as well.

Thanks

Hozan

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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,562

Compare 3p and 4p. Okay. Then compare 2q and -6q. Oh, 2 times 3 is 6, so that will be the easy way to solve.

We will get rid of the q and find p. Multiply 3p +2q = 9 by 3 and add it to the other equation.

So 9p + 6q = 27. Add it to second equation. 13p + zero q = 52

p = 4. Put 4 back into any equation and get q. q = -3/2

Another way is to graph the two lines on graph paper and see where they intersect.

**igloo** **myrtilles** **fourmis**

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